1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dafna11 [192]
4 years ago
10

Answer this plz to be rater 5 stars

Mathematics
1 answer:
mr Goodwill [35]4 years ago
4 0

Answer:

Step-by-step explanation:

3 min 20 seconds = 3*60 + 20 = 180 +20 = 200 seconds

2 min 44 seconds = 2*60 + 44 = 120 + 44 = 164 seconds

Improvement = 200 - 164 = 36 seconds

Percentage =(36/200) *100

                  = 18 %

You might be interested in
Stefan can tar a roof in 11 hours. Kim can tar the same roof in 14 hours. How long would it take them if they worked together
Dovator [93]
12.5 it takes 12.5 hours
8 0
3 years ago
PLEASEE help I’m really confused
maksim [4K]

Answer:

\frac{13}{\sqrt5}

Step-by-step explanation:

To get the shortest distance from a point to a line, we need to find a perpendicular line that intersects the line and also intersects the line. We know the slope of the line will be 1/2, but to find the y-intercept, we can just plug it into the point because we already know it will be on the line.

-3 = 1/2(-2)+c

-3 = -1+c

-2 = c

Now, we know the slope and the y-intercept, and since it will intersect the other line, we can set it equal to the other lines formula:

1/2x-2 = -2x+6

5/2x=8

x=16/5

Now, plugging this value of x into any of the equations, we can find the y-coordinate:

16/5(1/2)-2 = -2/5

We have the point (16/5, -2/5)

Now, we need to find the distance between (-2, -3) and (16/5, -2/5)

Plugging into distance formula:

\sqrt{(-2 - \frac{16}{5})^2+(-3-(-\frac{2}{5}))^2}\\=  \sqrt{(-5.2)^2+(-2.6)^2}\\= \sqrt{33.8}

= =\frac{13}{\sqrt5}

3 0
3 years ago
Read 2 more answers
**WILL MARK BRAINLIEST AND THANK YOU!!!! EXTRA POINTS!!!**
shepuryov [24]

Answer:

The first is a Postive slope. the Second is a Zero slope

Step-by-step explanation:

Becuase the first gradully increases. meaning positive

and the 2nd is a zero because there is no slope. it's a stright line. level ground. no up hill or down hill

Hope this helps!

7 0
3 years ago
Read 2 more answers
What 3 to the 6th power
abruzzese [7]

Answer:

729

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Which of the following are equations for the line shown below? Check all that
Flauer [41]

Answer:

it will be in a rectangle shape

Step-by-step explanation:

that go there

3 0
2 years ago
Other questions:
  • A store sells 10-ounce bottles of apple juice for $0.40 each and 16-ounce bottles for $0.56 each. How much money can you save by
    5·1 answer
  • Write a word problem that can be solved by multiplying a whole number and a fraction. Include the solution.
    14·1 answer
  • Patty has 123 CDs in her music collection. Of the 123 CDs, 27 are country music. Estimate the percent of patty's CD that are cou
    14·1 answer
  • Please select the best answer from the choices provided
    15·2 answers
  • Y+5=-11<br> What does y equal?
    8·1 answer
  • What is the average rate of change from x = −2 to x = 0?
    13·1 answer
  • B. 33_<br>3_?_2_?_5 = 1<br>سه سال​
    11·1 answer
  • Expanded form of (-p) ³​
    6·1 answer
  • Activities of tariffs​
    8·1 answer
  • Estimating a decimal sum or difference Estimate 18.71 +5.149 by first rounding each number to the nearest tenth.​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!